#!/usr/bin/env python
#
# Copyright (C) 2005-2020 ABINIT Group (Yann Pouillon)
#
# This file is part of the ABINIT software package. For license information,
# please see the COPYING file in the top-level directory of the ABINIT source
# distribution.
#
from __future__ import print_function, division, absolute_import #, unicode_literals

try:
    from ConfigParser import ConfigParser,NoOptionError
except ImportError:
    from configparser import ConfigParser,NoOptionError
from time import gmtime,strftime

import os
import re
import sys

class MyConfigParser(ConfigParser):

  def optionxform(self,option):
    return str(option)

# ---------------------------------------------------------------------------- #

#
# Subroutines
#

# Makefile header
def makefile_header():

  return """
# ---------------------------------------------------------------------------- #

#
# Targets for libabinit
#

# Set temporary directory
libabinit_tmpdir = tmp-libabinit-objects

"""



# ---------------------------------------------------------------------------- #

#
# Main program
#

# Initial setup
my_name    = "add-targets-libraries"
my_configs = ["config/specs/corelibs.conf"]

# Check if we are in the top of the ABINIT source tree
if ( not os.path.exists("configure.ac") or
     not os.path.exists("src/98_main/abinit.F90") ):
  print("%s: You must be in the top of an ABINIT source tree." % my_name)
  print("%s: Aborting now." % my_name)
  sys.exit(1)

# Read config file(s)
for cnf_file in my_configs:
  if ( os.path.exists(cnf_file) ):
    if ( re.search("\.cf$",cnf_file) ):
      exec(compile(open(cnf_file).read(), cnf_file, 'exec'))
  else:
    print("%s: Could not find config file (%s)." % (my_name,cnf_file))
    print("%s: Aborting now." % my_name)
    sys.exit(2)

# What time is it?
now = strftime("%Y/%m/%d %H:%M:%S +0000",gmtime())

# Init
cnf = MyConfigParser()
cnf.read(my_configs[0])
abinit_corelibs = cnf.sections()
abinit_corelibs.sort()

# Init targets
tgt_lib = """# Main target
libabinit.a:
	test ! -e "$(libabinit_tmpdir)"
	$(INSTALL) -d -m 755 $(libabinit_tmpdir)
"""

# Process each library
for lib in abinit_corelibs:
  parent = cnf.get(lib, "parent")
  if ( parent == "common" ):
    par_dir = "$(abs_top_builddir)/shared/common/src/%s" % lib
  elif ( parent == "libpaw" ):
    par_dir = "$(abs_top_builddir)/shared/libpaw/src"
  else:
    par_dir = "$(abs_top_builddir)/src/%s" % lib
  tgt_lib += "\n\tcd $(libabinit_tmpdir) && $(AR) xv %s/lib%s.a" \
      % (par_dir,lib)

# Finish setting targets
tgt_lib += """
	$(AR) $(ARFLAGS) libabinit.a $(libabinit_tmpdir)/*.$(OBJEXT)
	rm -rf $(libabinit_tmpdir)
"""

# Write targets
mf = open("Makefile.am","a")
mf.write(makefile_header()+tgt_lib)
mf.close()
